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Fall Fund Drive


Family Sciomyzidae - Marsh Flies

Is this some kind of Dung Fly? - Tetanocera - female ? Robber Fly ? - Dictya Marsh Fly - Poecilographa decora Fly - Euthycera arcuata Dictya ? - Dictya expansa - male Small Red Fly - Tetanocera Sciomyzidae - Marsh Flies - Tetanocera 3013234 Sciomyzid - Limnia
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Sciomyzoidea
Family Sciomyzidae (Marsh Flies)
Other Common Names
Snail-killing Flies
Explanation of Names
Sciomyzidae Fallén 1820
almost 200 spp. in >20 genera in our area(1), all in the nominate subfamily; ~620 spp. in 66 genera total(2)
5-10 mm
body yellowish, brownish, or grayish; antennae extend forward noticeably, a distinctive feature; wings often spotted or otherwise marked
throughout NA and the world
adults around marshes, lakes, ponds, or wooded areas; larvae are aquatic
larvae parasitize or prey on freshwater or terrestrial snails(3)
See Also
Dryomyzidae are similar but have a well-developed clypeus
Print References
T.W. Fisher and R.E. Orth. (1983). The marsh flies of California: (Diptera, Sciomyzidae). Bull. of the Calif. Insect Survey, v. 24, Univ. of Calif. Press (Full Text)